unroll

Now there's a new threat – drones equipped with a real fibre optic cable which unrolls as they fly.

"We have to work out which layer is different from the next layer so we can unroll that digitally," said Dr Mancuso.

The intertwining plots unroll in a mishmash of styles.

The action unrolls mostly in and around New York’s Plaza Hotel; in Washington, D.C., where they performed their first American concert; and on trains traveling back and forth.

Some people even unroll tin cans into strips to form parts of their walls.